Covert wireless earphones are essential items when it is important that the user is not seen to be using communications equipment, typically for police and military covert operations. Designed and built in the UK to medical standards, these devices give outstanding audio quality and can tolerate operating in the most hostile environments. We have recently completed the design of the VSB system which is immune from audible interference and data noise when used in areas of high AC magnetic field strength, such as in motor vehicles, on trains, and in sites with significant levels of electronic and electrical technology. All of the wireless earphones can be made as custom-fit which makes them significantly smaller as well as secure if the user has to run or engage in physical conflict. Inductive wireless earphones receive electromagnetic signals from a source such as a neck loop or an inductor pad driven from an audio source, typically from the output of a two-way radio or audio receiver.

A range of competitively priced inductively coupled analogue wireless earphones for covert security applications. These devices have a well defined generic anatomical profile to combine discretion and comfort and are designed to provide a good audio intelligibility. Three physical profiles are available to match the users ear canal both all of which offer identical technical performance. The earphones have a replaceable wax guard system to eliminate blockage and damage that can be caused by ear wax. A range of inductive neck loops and inductor packs are also available for these products. In situations that require the highest level of discretion and for long-term users we can offer custom fitted versions.

A wide range of body-worn and car mount accessories necessary to be used with inductive wireless earphones. Designed to to meet the needs and apparel restrictions of the user as well as ensuring discreetness and comfort. These can be used with a variety of communications radios and audio sources.

Sensorcom offer a range of digital wireless earphones built with an advanced DSP loaded with custom firmware and software to create high quality wireless earphone producing outstanding clarity as well as being output level limited to 96dB to prevent the possibility of hearing damage to the user. The system has also been frequency tailored to reduce interference from data and electrical sources.

The VSB System uses a novel, specialised audio signal modulation method which has been specifically developed to provide optimum performance in conjunction with the advanced digital signal processing implemented in the VSB Digital Wireless Receiver. The patent-pending method used in the VSB transmitter/receiver combination delivers drastically reduced levels of audible interference and noise when used in areas of high AC magnetic field strength, such as in motor vehicles, on trains, and in sites with significant levels of electronic and electrical technology. As a result, the system achieves outstanding speech quality across the whole spectrum of covert applications where standard inductive devices are inoperable.

The modulation scheme uses only carrier frequencies within the audio band, is highly tolerant to frequency drift, transmit coil response and mismatch of operational frequencies between transmitter and receiver. The receiver is programmed to decode only audio signals

VSB V-LIM Vehicle Loop Amplifier for the VSB System and Simultaneous operation of standard

VSB Noise Free Digital Wireless Earphones

A new product range designed to overcome the problems of induced interference that will cause buzzing, clicks and audio from loop systems in public places. The method used in the VSB* transmitter/receiver combination delivers drastically reduced levels of audible interference and data noise when used in areas of high AC magnetic field strength, such as in motor vehicles, on trains, and in sites with significant levels of electronic and electrical technology. As a result, the system achieves outstanding speech quality across the whole spectrum of covert applications where standard inductive devices are masked by noise and are inoperable.There are 4 physical profiles in 3 colours as well as the option of custom fit. *Patent pending.